Automobile accessory and method of making same



R. BLAHO 2,174,549

AUTOMOBILE ACCESSORY AND METHOD OF MAKING SAME Oct. 3, 193'9.\

' Filed Deo. 1, '195e Patented Oct.. 3, 1939 UNET cursor moties siero,cleveland. omo, mmm :e meer Fittings, luie., Cleveland, Ghia, s

of @hier iiirmiicotiom December l, 1936, Serial No. 13,555

Emeline.

This invention relates to e. fitting adaptable for ports oi automobiles.Several automobile ports illustrated herein consist of crank case, s

transmission casing, s reor erle or differential housing orio o gasolinetenis; but such iltting may be applied for other uses., includingjunction boxes for electric conduits and heating cipollances.

Olie object oi the invention is to provide on improved process forassembling the ttiur; omi its supporting well oud riitiii connecting theilttirig smi its supporting well iii o liquidi tight manner. l

Another object oi the invention `coroti-sts of ou improved process lorsecuring iu rigid position o fittirig wherein e, portion of the letteris omiolir sheoreri ond pressed over its supporting Woll to interloclr'the r'ittiog orio woll together.

A further object oi the invention is to provide en improved mounting fors fitting iii timel woll oi o' liolclcr or enclosing cosine.

In my improved process om@ mounting, es will later be apparent, therequired upsetting or ing of the metal of the supporting woll for timefitting is reduced to e minimum, omi by roce-trio of o single tooloperating iii one direction e, portiori of the metal of the ttiog issiieoreri omi folded lotersiisr and set in oermouezit clamping relationwith tlie supporting woll. Furthermore, the threaded portion oi -thefitting moy be made long or short, as verious coneiitioris moy require.Other advantages euri objects of tbe im'eotiori will be apparent totliose skilled iri the ort iroro the following description tolreo iriconnection with the accompsoyiris zirowirig, wherein:

Fig. 1 is o side View of on automobile chassis showing certain ports oraccessories omi mechanisrns for the automobile, including the enginecrank cese, transmission cri-fusing, reor sirio or diiereritial housingemi gasolerie took, euch laev-x1 ing o. tting embodyiugmy invention emiossem-a bleci according to my process; ports being broken away and theautomobile body being shown clicgrarrimstically by dotted lirios.

Fig. 2 is o fragmentary section showing one step of the process.

Fig. i is o. sectional view of the tting oonstructed according toanother step of my process.

Fig. 3a is o plexi View of the fitting, token on the line ila-ila ofFis'. 3.

Fig. 4 is o. fragmentary section showing another step of the process anothe tool ami anvil in position to eect the succeeding steps of theprocess.

Fig. 5 is a View similar to Fig. 's butshowins (on. zs-usm the tool infinal position completing the final step of theprocess.

Fig6 is a fragmentary sectional vlewof the assembled parts, showing a.sealing member threaded. into the iltting, being a section on the line 68 of Fig. 1.

xFig. is o, view similar to Fig. 4, but showing s modieci constructionof the iltting.

Fig. 8 is a sectional view showing the ttiufr of the construction iuFig. 'I in assercbieoi position.

In the drawing, i indicates es an entirety7 e chassis frame mouritcri ouiront snel reor ocirc of wheels, 2, t (only one wheel of eech priibeingshown). which ere connected to e crank cese o. 'Elie eugine is drivingiycomriected'throush o suitable transmission mechanism within o cuellos toe, shaft 1, the letter iu tum oper-stimo 'througii o clierentialmeciimsm in s housing to drive the Wheels Q iloicetes a gasolerie tenir,the connection thereci 'with the engine enel other mechanisms, portsriool driving anni control moeras being omitted from tire drawing as notbeing necessaria7 to e disclosure of the present ivoren tion. Each cithe ports or accessories above referred' to is provided with a sealingmember i@ 6 indice-teo au engine. the wolle of i and s. iltting ii, theletter being assembled with Y the well of the port according to tliefollowing steps; rst, iorm im the wall o! the roert` om opening l the-eiioulor well of which is to form 'a'substoutiolly conical rim i3, asshown in Fig, 2. Next, o section o! relatively soft steel is boredthrough sind topped to form en inter nelly threaded woll |43 and itsouter portion shaped to form o muy portion I5 hsvixigot one end anoutwardly extending flange' lo. Also, the ilange I6 is provided on itsinner face with e collar I1 formino arouncl the inner euri of tlie bodyportion lo sri'euriuler pocket l1 the outer side wall of the pocket il'being inclined outwardly substantially complementary-to the rim i3. Asshown, the bottom wall of the pocket il' is parallel to the outer faceof the flange it, its

` inner side woll is. ot right angles. to the bottom wall and its outerside wall is inclined outwardly; and the radial width ot the bottom wallis substantially equal to the thickness o'f the rim i3. Also, the outerend of the body portion il! is formed` with an annular recess i8. theside wall of the recess deining substantially the cree. alongrv andsurrounding 'en imaginerycylinder concentric to tbe :orisof the bodyportion i5. that is to be 'sheared, as later ,set forth. In form ofconstruction shown inllss. 8, 8a and 4,

. tion so that av large press and of power is not required to eifect theshearing and the annular recess. shown at I8. is formed exteriorly oi'the body portion: whereas in Fig. 7 the recess, shown at I 8', is formed'interiorly of the body portion for a puropse later set forth. Next, thefitting and its supporting wallare associated as shown in Flg.4, thatis, the flange Il is seated against one face of the supporting wall withthe rim Il projecting into the annular pocket I 'I' and the body portionI5 extends through the opening I2 beyond the opposite face of the wall.`When thus associated, the fitting is mounted on a base or anvil A of asuitable press the reciprocating member of which carries an annular toolB capable of carrying out in coacting relation to the base A, theremaining steps of` the process,

namely, shearing the outer circumferential portion of the body portionalong theimaginary cylinder already referred-to, folding the shearedportion. under pressure. against the rim Il, as shown at I9, to effect aclamped relation of the rim I 3 with the outer end of the collar I1 andcompressing the metal contiguous to and between the body portion andfolded portion in an axial direction to -effect both axial. and lateralpressure to clamp the rim I3 against the outer side wall of the pocketIl'. In this arrangement, the rim I 3 is compressed between a surfacelhaving 'angulariy related walls in cross section and a surface ofcurvilinear shape in cross section, the effect of which is to secure thetting in position, locked against rotative and axial movement. The toolB is provided with a head C terminating in an annular wall D, the inneredge of'which is provided with a shearing edge d surrounded by a concavegroove d which forms a die to engage and clamp the sheared portion intofinal position, as above set forth. y y

Where it is desired to prevent the inner end of the device fromextending beyond the inner face of the wall in which it is mounted toany substantial "extent, as for example, toinsure complete draining fromthe part, the annular recess at the outer end of thebody portion isformed interiorly thereof, as shown at I8 vin Fig. 7, and the bottomwall of the recess (which forms the end wall of the threaded portion)terminates substantially in the plane of the inner face of the part. Inthis form of construction, I provide on the outer end of the bodyportion a' relatively thin, circumferential wall which is curled.outwardly by the groove d of the tool in advance'l of the shearing edged so that thev latter in adf vancing to the endof its movement has butfasmall amount of metal to shear. as shown at yI8'. By providing an'annular` curling groove d in contiguous relation to the shearing edgeAd,- dan` ger of the tool in its active stroke forcing any of l the metalof the body portion I5 inwardly and affecting the diameter of the bore-I4 or distortion of the threads therein, is eliminated.l It will benoted that the portion of-.the metal sheared from the body portion 'isrelatively thin incrosssecclamping steps.

an undue amount It will be noted that the tting may be bored and/ortapped after it is secured in position but by preference, theseoperations are carried out priorto the positioning of the fitting.

To those skilled in the artto which my invention relates, many changesin construction and widely diil'ering modifications and applications ofthe invention will be apparent without departing from the spirit andscope of the invention. My

Y disclosures and the description herein are purely illustrative and arenot sense limiting.

What I claim is: 4

1. An automobile accessory vcomprising a holder one wall of whichisformed with an opening surrounded by -a lateral rim and a plugreceiving device having a flange engaging one face of said wall and ahollow, annular body portion extending through said opening, said flangebeing formed at theinner end of said body portion with an annular pocketinto which said rim seats and the metal of the outer surface of the bodyportion outwardly of said flange being sheared on an Imaginary cylinderand pressed downwardlyand laterally against said rim to secure thelatter in said pocket.

2. The herein disclosed process of securing a plug receiving device onthe wall of a holder which. consists in forming an opening in the wallof the holder and drawing laterally the marginal portionvof the wallaround the opening to form a rim, then inserting in said opening adevice having a hollow, annular body portion extending through saidopening and a flange at one end intended to be in any formed with anannular pocket at the inner end 3. 'I'he herein disclosed process ofsecuringa' plug receiving deviceA on the wall of a holder -whichconsists in forming an opening in the wall of the holder. with alaterally projecting circumferentialrim,y then inserting in said openinga devlce-having a hollow, annular. body .portion extendingthrough saidopening and formed at its outerend with an annular recess and having 'laflange at one end formed Awith an annular pocket at the inner end ofsaid body portion, with the flange engagingone face of said wall andsaid rim seated in said pocket, and then in shearing the metal lofv thebody portion along and outvwardly "of an imaginary cylindersubstantially `coincident with the vertical wall of said recess vandextending from the outer end of said body portion inwardly, and curlingthe sheared portion over and folding it under pressure against said rimltosecure it in said pocket.

. RUDOLPH BLAHO.`

